How to publish to Nexus the artifact generated by a Gradle project in Jenkins - maven

Question

I have a Gradle project with the following uploadArchives configuration to publish its artifact to Nexus:
uploadArchives {
repositories {
mavenDeployer {
repository(url: 'http://releasesrepo')
snapshotRepository(url: 'http://snapshotsrepo')
}
}
}
As you see there are no credentials in this configuration.
This build will be run from Jenkins as a Freestyle project so I will just have to specify in Build - Invoke Gradle Script - Tasks -> build upload
What's the right way to configure the Nexus credentials from Jenkins and pass them to the Gradle taks (I don't want them in the Git repo with the source code)?

Answer 1

There are three different ways:
1.Using environmental variables
def nexusUser = hasProperty('nexusUsername') ? nexusUsername : System.getenv('nexusUsername')
def nexusPassword = hasProperty('nexusPassword') ? nexusPassword : System.getenv('nexusPassword')
def nexusReleaseUrl = hasProperty('nexusReleaseUrl') ? nexusReleaseUrl : System.getenv('nexusReleaseUrl')
def nexusSnapshotUrl = hasProperty('nexusSnapshotUrl') ? nexusSnapshotUrl : System.getenv('nexusSnapshotUrl')
repositories {
mavenDeployer {
repository(url: nexusReleaseUrl) {
authentication(userName: nexusUser, password: nexusPassword);
}
snapshotRepository(url: nexusSnapshotUrl) {
authentication(userName: nexusUser, password: nexusPassword);
}
}
}
2.Using ~/.gradle/gradle.properties (remember is under the user jenkins)
nexusUser=user
nexusPass=password
uploadArchives {
def nexusUser = "${nexusUsername}"
def nexusPassword = "${nexusPassword}"
repositories {
mavenDeployer {
repository(url: 'your nexus releases') {
authentication(userName: nexusUser, password: nexusPassword);
}
snapshotRepository(url: 'your nexus snapshot') {
authentication(userName: nexusUser, password: nexusPassword);
}
}
}
}
3.Using the global credentials
You have an example here (it is for Travis) if you want to have a look